1 research outputs found
Demodulating AM square signals via a digital timer for sensor applications
This paper evaluates theoretically and
experimentally the performance of a timer-based demodulator
applied to low-frequency amplitude-modulated (AM) square
signals coming from sensor circuits. The demodulator extracts
the amplitude of the AM square signal by measuring the period
of a reference triangular signal that is altered by the AM signal
itself, as already suggested in a previous paper but for AM
sinusoidal signals.Postprint (published version